That's a glib response, but I do want to bring attention to how often this discussion generates such glib responses. If it's not, "so, projects, then" it's "so, you want San Francisco to look like Manhattan, then?" or some equivalent.
Notice how these responses do absolutely nothing to address the issue. They exist only to express dissatisfaction with realistic options.
Again, you can either build to meet demand or expect higher prices. Those are the options.